- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Radioactive contamination and transfer
- Radioactivity and Radon Measurements
- Medical Imaging Techniques and Applications
- Fault Detection and Control Systems
- Nuclear reactor physics and engineering
- Dark Matter and Cosmic Phenomena
- Engineering Diagnostics and Reliability
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Structural Health Monitoring Techniques
- Geophysical Methods and Applications
- Advanced Semiconductor Detectors and Materials
- Infrastructure Maintenance and Monitoring
- Neutrino Physics Research
Lawrence Livermore National Laboratory
2020-2023
Oregon State University
2017-2019
University of Michigan–Ann Arbor
2014
Abstract The nEXO neutrinoless double beta (0 νββ ) decay experiment is designed to use a time projection chamber and 5000 kg of isotopically enriched liquid xenon search for the in 136 Xe. Progress detector design, paired with higher fidelity its simulation an advanced data analysis, based on one used final results EXO-200, produce sensitivity prediction that exceeds half-life 10 28 years. Specifically, improvements have been made understanding production scintillation photons charge as...
Neutron detection provides an effective method to detect, locate, and characterize sources of interest nuclear security applications. Current neutron imaging systems based on double-scatter kinematic reconstruction provide good signal vs. background discrimination spectral capability, but suffer from poor sensitivity due geometrical constraints. This weakness can be overcome if both neutron-proton scattering interactions are detected resolved within one large contiguous active detector...
A stilbene crystal was coupled to a silicon photomultiplier (SiPM) assess the performance of detector's pulse shape discrimination (PSD) between fast neutrons and gamma rays. Pulses were digitized from measurement Cf-252 digital charge comparison used perform PSD. The then tube (PMT) repeated. PSD when using SiPM compared that system PMT. Both systems demonstrate efficient ability discriminate While PMTs have long been standard technology for light readout, SiPMs show similar capabilities...